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Water Quality Directory/Los Angeles
US · Municipal Telemetry

Los Angeles Tap Water Quality & Hardness Audit

Los Angeles tap water mixes imported water from the Colorado River Aqueduct and California Aqueduct with local groundwater wells, resulting in significant mineral hardness.

Total Mineral Concentration
210PPM (mg/L)
Category: Hard Water
Skin Vulnerability
8.2 / 10
pH Index
7.7

Check Your Neighborhood / Postal Code Hardness

Enter your zip/pincode or local area in Los Angeles to check targeted mineral levels:

Sample Zone Telemetry in Los Angeles
Beverly Hills
90210 · 215 PPM
Santa Monica
90401 · 205 PPM
Downtown LA
90012 · 220 PPM

Geological & Mineral Composition Breakdown

Calcium Concentration (Ca²⁺)
72 mg/L

Primary driver of insoluble soap scum formation on face and scalp.

Magnesium Concentration (Mg²⁺)
16 mg/L

Contributes to epidermal moisture loss and barrier inflammation.

Average Temperature & Humidity
20°C · 58%

Regional climate factor affecting perspiration and TEWL rates.

Geological & Water Source Note: Colorado River water passes through mineral-rich desert soils and rock formations, accumulating high calcium and magnesium ion counts.
Dermatologist Action Plan

How to Shield Your Skin in Los Angeles

STEP 1 · PURIFY

Cetaphil Gentle Hydrating Cleanser

Contains EDTA & Glycerin to bind calcium & magnesium ions before they form soap scum on skin.

Chelating & Soap-Free$5
View on Amazon →
STEP 2 · REPLENISH

Minimalist 5% Marula Oil & Ceramide Cream

Formulated with 5 Ceramides & Marula oil to repair intercellular lipid loss caused by mineral salt drying.

Barrier Lipid Shield$7
View on Amazon →
STEP 3 · PROTECT

Minimalist Fluid Sunscreen SPF 50 PA++++

Lightweight Niacinamide fluid shield protecting against mineral inflammation and oxidative humidity stress.

SPF 50 Protection$6
View on Amazon →